I believe it was a combination of overstretching, too much running on hard surfaces, and too many explosive excercises at the same time without enough time to recover. But, who really knows? I have been on my way to figure it out.
I believe it was a combination of overstretching, too much running on hard surfaces, and too many explosive excercises at the same time without enough time to recover. But, who really knows? I have been on my way to figure it out.